Austin, J (2021) A Potential Barrier Halting Spherically Symmetric Relativistic Gravitational Collapse. In: Research Trends and Challenges in Physical Science. Book Publisher International, pp. 101-113. ISBN 978-93-91595-88-3

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For asymptotic observers, geodesic paths of radially inbound photons in a Schwarzschild space-time approach the critical radius of a collapsed star asymptotically. When considering processes of accretion or quantum evaporation however, inbound null geodesics, in a corresponding Vaidya space-time, pass through a momentary inflection point where time dilation diverges and subsequently reach the critical radius within a finite coordinate time. By considering a diagonal form of the Vaidya metric that reduces to the Schwarzschild metric in the zero accretion/evaporation limit, photons approaching on radial paths pass through the inflection point and undergo infrared divergence at the critical radius. Particles on radial timelike geodesics are shown to meet a potential barrier beyond the inflection point, which diverges at the critical radius.

Item Type: Book Section
Additional Information: The final version of this chapter and all other information regarding it, and the book, including copyrights, can be found online at;
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Natural Sciences > School of Computing and Mathematics
Depositing User: Symplectic
Date Deposited: 15 Sep 2021 10:28
Last Modified: 15 Sep 2021 10:28

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